| 2018 | AINA | Enhancing Money Saving Tips Recommendation System by Pairwise Preferences. | Takashi Araki, Chiaki Doi, Daizo Ikeda, Masaji Katagiri, Shuhei Kuwata, Tatsuya Kawasaki |
| 2018 | AINA | Is he Becoming an Excellent Customer for us? A Customer Level Prediction Method for a Customer Relationship Management System. | Chiaki Doi, Masaji Katagiri, Takashi Araki, Daizo Ikeda, Hiroshi Shigeno |
| 2017 | AINA | Family Structure Attribute Estimation Method for Product Recommendation System. | Chiaki Doi, Masaji Katagiri, Takashi Araki, Daizo Ikeda, Hiroshi Shigeno |
| 2004 | AINA | Secure Signals Transmission Based on Quaternion Encryption Scheme. | Tomoyuki Nagase, Masaya Komata, Takashi Araki |
| 2002 | ISCC | Moderating traffic flow over conventional ATM service. | Tomoyuki Nagase, Takashi Araki, Yoshio Yoshioka, Tadao Nakamura |
| 2001 | ISCC | Variable-Length Coding based on Bent Sequences for W.ireless Advertising. | Emad Rashid, Yoshio Yoshioka, Takashi Araki, Tadao Nakamura |
| 1999 | ISCAS | A digital watermark method using the wavelet transform for video data. | Hisashi Inoue, Akio Miyazaki, Takashi Araki, Takashi Katsura |